Hello,

The jackpot is a special reward, made of 2% of each lost bet.

Every Monday after midnight, the jackpot is randomly granted to a player. The probability to win the jackpot is directly proportional to the number of jackpot points owned by each individual player.

A user receives 5 jackpot points when he joins SupraBitcoin for the first time with a confirmed account, or 10 jackpot points by following an affiliate link.
He also receives 1 jackpot point when he reaches the end of the grids with a real bet.
And this is perhaps the most interesting for those who want to win the jackpot without betting  : a user with a confirmed account receives 5 jackpot points for each new affiliate with a valid email address.

After the jackpot is won, the jackpot points of every player and the jackpot itself are reset.

I also want to tell you that the house edge displayed on the home page is not fixed. This is the "real" current house edge, calculated on actual statistics. You may have noticed that the value is pretty high at the moment (good evidence that the statistics are not rigged) but this is due to the low number of games played and probably the bad luck of the biggest players. The value of the house edge should quickly get closer to 1.16%.